C++ (Cpp) user_x86_xsave_entry__init Examples

Example #1

File: crtools.c Project: swells/criu

int arch_alloc_thread_info(CoreEntry *core)
{
	size_t sz;
	bool with_fpu, with_xsave = false;
	void *m;
	ThreadInfoX86 *ti = NULL;


	with_fpu = cpu_has_feature(X86_FEATURE_FPU);

	sz = sizeof(ThreadInfoX86) + sizeof(UserX86RegsEntry);
	if (with_fpu) {
		sz += sizeof(UserX86FpregsEntry);
		with_xsave = cpu_has_feature(X86_FEATURE_XSAVE);
		if (with_xsave)
			sz += sizeof(UserX86XsaveEntry);
	}

	m = xmalloc(sz);
	if (!m)
		return -1;

	ti = core->thread_info = xptr_pull(&m, ThreadInfoX86);
	thread_info_x86__init(ti);
	ti->gpregs = xptr_pull(&m, UserX86RegsEntry);
	user_x86_regs_entry__init(ti->gpregs);

	if (with_fpu) {
		UserX86FpregsEntry *fpregs;

		fpregs = ti->fpregs = xptr_pull(&m, UserX86FpregsEntry);
		user_x86_fpregs_entry__init(fpregs);

		/* These are numbers from kernel */
		fpregs->n_st_space	= 32;
		fpregs->n_xmm_space	= 64;

		fpregs->st_space	= xzalloc(pb_repeated_size(fpregs, st_space));
		fpregs->xmm_space	= xzalloc(pb_repeated_size(fpregs, xmm_space));

		if (!fpregs->st_space || !fpregs->xmm_space)
			goto err;

		if (with_xsave) {
			UserX86XsaveEntry *xsave;

			xsave = fpregs->xsave = xptr_pull(&m, UserX86XsaveEntry);
			user_x86_xsave_entry__init(xsave);

			xsave->n_ymmh_space = 64;
			xsave->ymmh_space = xzalloc(pb_repeated_size(xsave, ymmh_space));
			if (!xsave->ymmh_space)
				goto err;
		}
	}

	return 0;
err:
	return -1;
}

Example #2

File: crtools.c Project: avagin/crtools

int arch_alloc_thread_info(CoreEntry *core)
{
	ThreadInfoX86 *thread_info;
	UserX86RegsEntry *gpregs;
	UserX86FpregsEntry *fpregs;

	thread_info = xmalloc(sizeof(*thread_info));
	if (!thread_info)
		goto err;
	thread_info_x86__init(thread_info);
	core->thread_info = thread_info;

	gpregs = xmalloc(sizeof(*gpregs));
	if (!gpregs)
		goto err;
	user_x86_regs_entry__init(gpregs);
	thread_info->gpregs = gpregs;

	if (cpu_has_feature(X86_FEATURE_FPU)) {
		fpregs = xmalloc(sizeof(*fpregs));
		if (!fpregs)
			goto err;
		user_x86_fpregs_entry__init(fpregs);
		thread_info->fpregs = fpregs;
		/* These are numbers from kernel */
		fpregs->n_st_space	= 32;
		fpregs->n_xmm_space	= 64;

		fpregs->st_space	= xzalloc(pb_repeated_size(fpregs, st_space));
		fpregs->xmm_space	= xzalloc(pb_repeated_size(fpregs, xmm_space));

		if (!fpregs->st_space || !fpregs->xmm_space)
			goto err;

		if (cpu_has_feature(X86_FEATURE_XSAVE)) {
			UserX86XsaveEntry *xsave;
			xsave = xmalloc(sizeof(*xsave));
			if (!xsave)
				goto err;
			user_x86_xsave_entry__init(xsave);
			thread_info->fpregs->xsave = xsave;

			xsave->n_ymmh_space = 64;
			xsave->ymmh_space = xzalloc(pb_repeated_size(xsave, ymmh_space));
			if (!xsave->ymmh_space)
				goto err;
		}
	}

	return 0;
err:
	return -1;
}